<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>ajax</title>
</head>
<body>
    <script>
        const url="https://www.imooc.com/api/http/search/suggest?words=js";
        const xhr= new XMLHttpRequest();
        xhr.addEventListener('load',()=>{
            if((xhr.status>=200 && xhr.status<300)||xhr.status===304){
                console.log(xhr.responseText)
            }   
        },false);
        xhr.open('POST',url,true);
        
        xhr.send('name=gu');
    </script>
</body>
</html>